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为了评估气动加热效应对红外成像型导弹产生的影响,通过理论分析导弹飞行过程中受到的气动加热变化规律,并研究实验室和大型试验测试数据,首次引入气动热效应建模流程并采用正态分布等方法建立了虚拟样机仿真模型,模拟导弹飞行过程中整流罩受到的气动热辐射与红外图像的变化过程,经过数字仿真、半实物仿真和大型试验验证,证明该方法建立的模型与实际情况相吻合,可以用来评估气动加热效应对产品性能造成的影响,进行信息处理算法改进。
In order to evaluate the effect of aerodynamic heating on infrared imaging missiles, the aerodynamic heating variation during missile flight was analyzed theoretically and the laboratory and large-scale test data were studied. The aerodynamic heating modeling process was introduced for the first time and the normal distribution And other methods to establish a virtual prototype simulation model to simulate the course of the aerodynamic thermal radiation and infrared image changes of the fairing during the flight of the missile. After the digital simulation, semi-physical simulation and large-scale experimental verification, it proves that the model and the actual situation Anastomosis, can be used to assess the impact of aerodynamic heating effect on product performance, information processing algorithms to improve.